Home / 15,114,435.75-20,856,878.73-8,500,012.74

Finding the Fourth Proportional to 15,114,435.75, 20,856,878.73 and 8,500,012.74

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Solution

The fourth proportional to 15,114,435.75, 20,856,878.73 and 8,500,012.74 is: 11,729,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,114,435.75 : 20,856,878.73 = 8,500,012.74 : x
  2. Step 2: Convert to fraction form
    15,114,435.75/20,856,878.73 = 8,500,012.74/x
  3. Step 3: Cross multiply
    15,114,435.75x = 20,856,878.73 × 8,500,012.74
  4. Step 4: Simplify right side
    15,114,435.75x = 177,283,734,921,635.03
  5. Step 5: Solve for x
    x = 177,283,734,921,635.03/15,114,435.75
  6. Step 6: Final answer
    x = 11,729,431.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.